Part A
ADS5402IZAY
Texas Instruments
- Lifecycle
- Active
- Stock
- 5854 Stückzahl
- Package
- NFBGA-196
- Series
- Datenerfassung mit Analog to Digital Converters (ADC)
Replacement verdict
Compatible functional replacement candidate
The ADS5402IZAY and ADS5402IZAYR are functionally equivalent, differing only in packaging format (tube vs. tape and reel). Both share identical core specifications, making the ADS5402IZAYR a suitable replacement for the ADS5402IZAY when reel packaging is preferred for automated assembly.
Resolution and Sample Rate
High match
Package Type
High match
Pin Configuration
High match
Operating Temperature Range
High match
Parts at a glance
Part B
ADS5402IZAYR
Texas Instruments
- Lifecycle
- Active
- Stock
- 7879 Stückzahl
- Package
- LFBGA-196
- Series
- Datenerfassung mit Analog to Digital Converters (ADC)
Key differences
Rows are prioritized by design impact. Highlighted values require attention during substitution.
Key electrical and mechanical differences between the two devices
| Parameter | ADS5402IZAY | ADS5402IZAYR | Why it matters |
|---|---|---|---|
| Resolution | 12 bit | 12 bit | Determines the quantization precision of the ADC; identical resolution means equivalent signal-to-noise performance for a given input. |
| Sampling Rate | 800 MSPS | 800 MSPS | Sets the maximum input bandwidth the converter can digitize; matching rates ensure the same Nyquist capability. |
| Number of Input Channels | 2 (dual) | 2 (dual) | Defines how many simultaneous analog signals can be sampled; both are dual-channel, so system architecture remains unchanged. |
| Input Type | Differential | Differential | Differential inputs improve common-mode rejection and dynamic performance; identical input topology allows the same front-end design. |
| Output Interface | LVDS (DDR) | LVDS (DDR) | Determines the digital interface to the FPGA/ASIC; matching LVDS DDR outputs allow drop-in compatibility with the same receiver logic. |
| Supply Voltage | 1.8 V (analog/digital), 3.3 V (I/O) | 1.8 V (analog/digital), 3.3 V (I/O) | Power rail requirements must match for the same board design; identical rails mean no power-tree redesign is needed. |
| Package / Case | 196-LFBGA (12x12 mm) | 196-LFBGA (12x12 mm) | Footprint and thermal characteristics must match for physical interchangeability; identical package allows the same PCB land pattern. |
| Operating Temperature Range | -40°C to +85°C | -40°C to +85°C | Defines the environmental envelope for reliable operation; matching ranges ensure equivalent thermal qualification. |
| Packaging / Ordering Format | Tray | Tape & Reel | Affects manufacturing handling and pick-and-place assembly; the "R" suffix denotes reel packaging, which matters for high-volume automated production but not electrical function. |
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Full specification comparison
Use manufacturer datasheets as the final authority.
| Specification | ADS5402IZAY | ADS5402IZAYR |
|---|---|---|
| Supplier | - | Texas Instruments |
| Part Status | Active | Active |
| Number of Bits | 12 | 12 |
| Sampling Rate(Per Second) | 800M | 800M |
| Number of Inputs | 2 | 2 |
| Input Type | Differential | Differential |
| Data Interface | Parallel | Parallel |
| Configuration | S/H-ADC | S/H-ADC |
| Ratio - S / H: ADC | 1:1 | 1:1 |
| Number of A/D Converters | 2 | 2 |
| Architecture | Pipelined | Pipelined |
| Reference Type | External, Internal | External, Internal |
| Voltage - Supply, Analog | 1.7V ~ 1.9V, 3.15V ~ 3.45V | 1.7V ~ 1.9V, 3.15V ~ 3.45V |
| Voltage - Supply, Digital | 1.7V ~ 1.9V | 1.7V ~ 1.9V |
| Features | Simultaneous Sampling | Simultaneous Sampling |
| Operating Temperature | -40°C ~ 85°C | -40°C ~ 85°C |
Frequently asked questions
What is the difference between ADS5402IZAY and ADS5402IZAYR?
The ADS5402IZAY and ADS5402IZAYR are the same device: a dual-channel, 12-bit, 800-MSPS analog-to-digital converter in a 196-ball NFBGA (ZAY) package. The "R" suffix denotes tape-and-reel packaging, while the non-R part is typically supplied in trays. Electrical and functional specifications are identical.
Are the ADS5402IZAY and ADS5402IZAYR electrically and functionally identical?
Yes. Both orderable part numbers refer to the same ADS5402 die and package. The only documented difference is the shipping/packaging format (tray versus tape-and-reel); datasheet performance, pinout, and operating conditions are the same.
Can ADS5402IZAYR be used as a drop-in replacement for ADS5402IZAY?
Yes, from a device standpoint. Because both share the same 196-ball NFBGA (ZAY) package, pinout, and specifications, either can be used in the same PCB footprint. The choice is driven by assembly and inventory requirements (reel versus tray handling), not by electrical differences.
What are the key specifications of the ADS5402?
The ADS5402 is a dual-channel, 12-bit ADC with a maximum sample rate of 800 MSPS. It operates from a 1.8 V analog supply and 3.3 V/1.8 V digital supplies, provides a DDR LVDS output interface, and is specified over the industrial temperature range of -40°C to +85°C in the 196-ball NFBGA (ZAY) package.
Why would a designer choose the tape-and-reel version (ADS5402IZAYR)?
Tape-and-reel packaging is intended for automated pick-and-place assembly lines, enabling higher-throughput, reel-fed production. The tray version (ADS5402IZAY) is typically used for prototyping, low-volume runs, or manual assembly. The silicon device is the same in both cases.
Do ADS5402IZAY and ADS5402IZAYR differ in temperature grade or qualification?
No. Both part numbers correspond to the same industrial temperature grade (-40°C to +85°C) and the same device qualification. Packaging format is the only documented distinction between the two orderable part numbers.
What interface and output format does the ADS5402 provide?
The ADS5402 provides a DDR LVDS digital output interface for each of its two 12-bit channels, supporting high-speed data capture at sample rates up to 800 MSPS. Designers should confirm timing and layout requirements against the official datasheet for the ZAY package.